The persistence of deltamethrin in Malaysian agricultural soils

Studies on the persistence and dissipation of deltamethrin (C22H19Br2NO3) in two types of soil, namely peat and silty clay were conducted under laboratory conditions. The analysis was done using a gas chromatography (GC) equipped with an electron capture detector (ECD). The dissipation rate of delta...

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Main Authors:	Ismail, B.S., Mazlinda, M., Tayeb, M.A.
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2015
Online Access:	http://journalarticle.ukm.my/8238/ http://journalarticle.ukm.my/8238/ http://journalarticle.ukm.my/8238/1/12_B.S._Ismail.pdf

id	ukm-8238
recordtype	eprints
spelling	ukm-82382016-12-14T06:46:38Z http://journalarticle.ukm.my/8238/ The persistence of deltamethrin in Malaysian agricultural soils Ismail, B.S. Mazlinda, M. Tayeb, M.A. Studies on the persistence and dissipation of deltamethrin (C22H19Br2NO3) in two types of soil, namely peat and silty clay were conducted under laboratory conditions. The analysis was done using a gas chromatography (GC) equipped with an electron capture detector (ECD). The dissipation rate of deltamethrin was faster in silty clay soil than in peat soil at 25°C. When the temperature was increased from 25 to 35°C, the half-life of deltamethrin decreased by 32.53% in peat soil and 22.9% in the silty clay soil in the presence of light. When the same experiment was conducted in the dark, the decrease in the half-life of deltamethrin was 27.9% in peat soil and 22.5% in silty clay soil. When the soil moisture content was increased from 40 to 60%, the half-life of deltamethrin decreased by 50.7 and 19.75% in peat soil and silty clay soil, respectively. A significant degradation rate of deltamethrin was observed in non-autoclaved soil compared with that in autoclaved soil where the half-life was reduced by 76.05% in peat soil and 59.21% in silty clay soil. The results showed that the degradation rate of deltamethrin in soil had a direct relationship with the microbial activity in the soil. Universiti Kebangsaan Malaysia 2015-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/8238/1/12_B.S._Ismail.pdf Ismail, B.S. and Mazlinda, M. and Tayeb, M.A. (2015) The persistence of deltamethrin in Malaysian agricultural soils. Sains Malaysiana, 44 (1). pp. 83-89. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Studies on the persistence and dissipation of deltamethrin (C22H19Br2NO3) in two types of soil, namely peat and silty clay were conducted under laboratory conditions. The analysis was done using a gas chromatography (GC) equipped with an electron capture detector (ECD). The dissipation rate of deltamethrin was faster in silty clay soil than in peat soil at 25°C. When the temperature was increased from 25 to 35°C, the half-life of deltamethrin decreased by 32.53% in peat soil and 22.9% in the silty clay soil in the presence of light. When the same experiment was conducted in the dark, the decrease in the half-life of deltamethrin was 27.9% in peat soil and 22.5% in silty clay soil. When the soil moisture content was increased from 40 to 60%, the half-life of deltamethrin decreased by 50.7 and 19.75% in peat soil and silty clay soil, respectively. A significant degradation rate of deltamethrin was observed in non-autoclaved soil compared with that in autoclaved soil where the half-life was reduced by 76.05% in peat soil and 59.21% in silty clay soil. The results showed that the degradation rate of deltamethrin in soil had a direct relationship with the microbial activity in the soil.
format	Article
author	Ismail, B.S. Mazlinda, M. Tayeb, M.A.
spellingShingle	Ismail, B.S. Mazlinda, M. Tayeb, M.A. The persistence of deltamethrin in Malaysian agricultural soils
author_facet	Ismail, B.S. Mazlinda, M. Tayeb, M.A.
author_sort	Ismail, B.S.
title	The persistence of deltamethrin in Malaysian agricultural soils
title_short	The persistence of deltamethrin in Malaysian agricultural soils
title_full	The persistence of deltamethrin in Malaysian agricultural soils
title_fullStr	The persistence of deltamethrin in Malaysian agricultural soils
title_full_unstemmed	The persistence of deltamethrin in Malaysian agricultural soils
title_sort	persistence of deltamethrin in malaysian agricultural soils
publisher	Universiti Kebangsaan Malaysia
publishDate	2015
url	http://journalarticle.ukm.my/8238/ http://journalarticle.ukm.my/8238/ http://journalarticle.ukm.my/8238/1/12_B.S._Ismail.pdf
first_indexed	2023-09-18T19:51:51Z
last_indexed	2023-09-18T19:51:51Z
_version_	1777406271834554368

The persistence of deltamethrin in Malaysian agricultural soils

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